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line somtimes appeears


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Had a similar problem with our Frontier 7700 sometime back.

I traced it down to back print ribbon can you believe it?

It was getting old and had the edges shred. goes up with the paper and adheres to the exposure slit in front of

laser glass.

Please try to clean the glass and the slit and replace your ribbon with new one and you should be ok.

Let's hope this is not a laser issue.

Post the results please.

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My advice :

Put out paper magazine

Put out paper supply then

Check  inside the exposure deck with a torch , you have to find a very thin yarn ( cotton ) near the rollers  ,  print line is not linear because when machine is printing the fan is working  near the exposure deck.

Machine should be turn on . In the manual part list , you can find the  mecanism of the exposure deck a

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